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(N0 Nudel.)

D. J. STEVENSON.

- GAR GOUPLING. No.-321,918. Patentiad uly 7. l885 UNITED STATES PATENT Urnen DAVID J. STEVENSON, OB MINNEAPOLIS, MINNESO'IA, ASSIGNOR OB ONE- v HALB IO FREDERICK G. NOTT, OB SAME PLAGE.

CAR-COUPLING.

(3CJE-C'IFIGATION forn1ing part of Letters Patent N0. 321,918, dated J'u1y '7 1885.

Appicntion tilml May 5, 1885. (N0 model.)

T0 all wh07n .it may concern:

Be it known tl1at I, DAVID J.Sr11vnnsorr a oitizen of the Unitecl States, rosiding ab Minneapolis, in the county of Hennepin and State of Minnesota, have invented an Improved A11- to1natio Oar-Couplor, of which the followin'g is a speoification.

My invention relaies to improvements in conplers for railroad-cars; ancl the objeets I have in view are to provide an automatie compler tl1at sl1all loe simple and inexpensive in construction, effioient in Operation, ancl adapte(l for conpling witl1. any ordinary coupler or witl1 anotl1or of the same kin(l.

In the aocon1panying drawings, forn1ing part of tl1is speoifioation, Figure l is alongitudinal seetion on line z z of Fig. 2, showing the parts in position for operation. Fig. 2 is a plan. Fig. 3 is a longitudinal section, with the link engaged by the coupler, and showing 111 d0tted liues the pin elevated; Fig. 4, a plan, broken away in part to sl10w the interior. Fig. 5 is a detail of the bar oarrying tll coupling-pin'.

A111 the clrawings represents the draw-head of 1ny in1proved conpler. Il1is draw l1ead oonsists, preferably, 01' a single casting, of substantially the shape shown, having in its top the longitudinal slot a, ancl I prefer 10 provide the head with the part A, that extencls over and above the slot a to proteot the bar G, hereinafter desoribecl. The headAis open at its forward end, and is provicled witl1 the oross-piece a, which is cast integral With the main bocly o1 the draw-head, lont leaving the openings a a in line With the inner Walls of the san1e. At its forward end the Walls 0f the draw-l1ead are beveled off, snbstantially as shown, 130 (lireot the coupling-link into the draw-head, and the front Wall of the crosspiece a is inclined, as shown, so that when the end of the link strikes tl1is Wall it will b e direoted towarcl the lower part o1 the drawhea.

B B represents a slide in the draw-head A, l1aving the inolined ends b b, against whieh the Iink strikes in coupling, and through whiol1 the moving parts 01 the coupler are operated. 'Il1e forward faees of the ends b b are of substantially the same inelination as the front wall of the cross-piece a, ancl when the slide is pushed in loy the links these ends (lireot the link to the lower part of the drawhead, and both the end of the link and the ends ot'tl1e slide are receivecl in the spaoe between the pin and the face of the oross-pieco a. Tl1e two parts of the slide extend tl1rough the openings a in the oross-pieoe a, and back of this eross-pieoe the slicle is provided wi1h vertical pieees b b, and with the bolts b b, whieh extend throngh slots a" a in the botton1 of the raW-hea(l and have seonred to them the crosspiece b A projection, b 011 the bottom of the draw-head has seenred to it a rod, b, surrounded by a spiral spring, ZP. The rod b* extends throngh the crosspiece IP, and the spring b bears tl1ereon a11cl tends to keop the slide in the position sl1own in Fig. 1.

O is a me1al bar, l1aving integral witl1 it the depending projection O ancl the oonpling-pin O The conpling-pin may be a separate pin hold by the bar O in any suitable manner. 'Ihe bar C fits in the longitudinal slot a in the draw-head and its rear end is beveled a1; c, as shoWn. 'Il1e rearinner wall of the draw-head is inclinod, as sl1own at a, a11d the forward end of the drawheacl projeots beyond the e111l of the bar O, so that the bar cannot be strno'k by the buffers Wl1en the cars come together. The projection C is beveled or inclined at an angle of abont forty-five degrees 011 its nnder side, as sl1own at c, and it is providecl 011 eaeh sicle with a lng, 0 against whiol1 the pieces b b on the slide B strike when the slide i s n1oved back against the tension of the spring Z).

D is a spring within the draw-l1ead, engaging the projeotion G, and tending 130 hold the ba"r O down in its normal position.

D is another spring tl1at for1ns a support fortl1e rear encl of the bar C.

A A are projeetions witl1in the draw-l1ead, between whioh the spring D passes. 'll1c npper snrfaces of tl1ese projections are at an inclination of abont forty-five (Iegrees, and upon these inclined faces the projeotion C, having the oppositely-inelined face, rests.

In ooupling oars tl1is devioe oporates as follows: 'Il1e inclined ends b b of the slicle B are strnck loy the link an(l the slide is PI1S1IGLI back into the draw-head against the tension of the spring IP. In th is movement the parts b b of the slide strike the lugs 0 0 011 the projection C of bar C. The bar O is thereloy IOO 1noved back in the Same direetion, ibs beveled end c passing down along the inclined wa1l I7 bhe rear f the dmw-head and the inclined fiwe 0f projection G riding up the inclined i'aees 0f projeetions A A. This movement 0f bar C is against the tension 0f the springs D und D. As the rem end of the bar is depressed its forward end rises nnti1 it reaches substantiully the posibion shown in Fig. 3. The couplingpin C is carried up by tln's mwe1nent 0t' the bar, and the end 0f the link asses under the pin. As soon as the barhas been raised to substantially the point indicated by the dotted lines, the pieces b b pass under and disengage from the 1ngs c 0, and the springs D D bring the bar back to its former p0 sibion, with the coupling-pin passing through 1110 link and through an opening in the bottom 0f the draw-head. The parts b b of the slide are then 011 the opposite side of lugs c"c. Tl1e bottom ofthe dmw-head is also provided wibh the slot and a holt, E, is secured to the bar O, m1d passes through this s1ot. Bellerank levers F F are provided, one oneach side, and arranged in position t0 m0ve the holt E, and thereby the bar O. This move ment; 1's similzu t0 filmt given to the bar by the slide B when operated by the link, ehe rear end 0f fohe bar being dep 1essed and its forward end mised. As will be Seen, these 1e"ers may he used fo1 uncoupling. As soon as the bar C lms been moved so that the lugs c"are above lhe ends 0f tl1e pieces b Z) the spring b pushes the slide forwm-d und forces the link fron1 the dmw-heud. The bar mayof eourse be moved by rmy obher suitable means, whon it is de- Si10d 1 0 nnconple the cnrs.

I c1uim as my invention l. In an antomatie coupler, ehe combination, Wibh he drawhead A, having the inclined projections A A und the inelined wal] a, of the slide B, und bar (,lmving beveled end c, projecbion C, and conplingpin C", substantially as described.

2. In an antomatic canconpler, tl1e combination, wit;h the draw-head A, 0f the bar O, having projection O and pin C und the slide B, having the inclined ends b b, mrtica1 pieces b Z), and the spring b", all substantially as described.

3. 'Ihe combination,with the draw-head A. having inclined projections A A and inclined wall a, 0f the slide B, having pieces b b. spring Zfi, the bar O, having conplingpin (J und projections O, the 1ugs c c, and the springs D D, all substantially as described.

4. The eombinaion, with thc drzuv-hend A, of the bar C having pin C und projeetion C, the springs D D, the holt E, und the levers F, all substantially as described.

5. The combinationwith the drzuv-head A, having cross-piece a and openings F, the projecbions A, and the inch'ned Wall a", 0f the slide B B, having inelined ends b b und vertical pieces b b, Ehe spring b, the bar C, having inclined projection C, heveled end c, lugs c" c und the eonpling-pin O, all substantially as described.

In testi1nony whereofI l1ave hereunto Set my band this 21th day 0f April, 1885.

DAVID J. SIEVENSON.

In presence of- A. M. SMI'IIT, O. D. KTNNEY. 

